Insulating cover for an electrical outlet box



FIG. 1 is a front elevational view of an insulating cover for an electrical outlet box showing my new design;

FIG. 2 is a top plan view thereof, the bottom being identical in appearance;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a side elevational view thereof, the side opposite being identical in appearance; and

FIG. 5 is a top, front and right side perspective view thereof. 

The ornamental design for an insulating cover for an electrical outlet box, as shown and described. 